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A Simple Rechargeable Cylinder Fan for Fursuit
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README.md

Redcraft Fursuit Cylinder Fan

A Simple Rechargeable Cylinder Fan for Fursuit Heads

Installation

PCB

First, solder the components to the PCB, you can refer to the method provided in the Link.

The non-silkscreened 0Ohm resistor next to U3 is used to configure the fan PWM positive and negative. For DV05028B12U, use the 0Ohm resistor to connect pad closest to inside PCB (positive PWM).

The JP2 connector is used to connect the battery level indicator module, so don't solder XH2.54-2P.

You can refer to the following procedure to verify that the PCB is working, and reproduce the soldering of J1 or U1 if there is an abnormality.

Note

: No abnormally high temperatures in the IC and other components throughout the process.

  1. Ensure that there is no shorts for C1 C2 C23 and that their resistance is at the MOhm level.
  2. Ensure that there are no false shorts between the IP2368 and Type-C pins and to GND.
  3. Ensure LEDs are oriented and colored correctly.
  4. Insert the battery with the capacitor fully discharged and ensure the red light blinks 4 times and then goes out.
  5. Insert a battery of less than 50% capacity and apply 20V power to Type-C or C23 (left end is positive).
    1. Ensure the red light comes on quickly and without blinking.
    2. Within 3 seconds of IC protocol negotiation, ensure the power supply should be around 0.6W.
    3. After 3 seconds of IC protocol negotiation, ensure the power supply should be about 24W (12W for 5V, 9V, 12V, 15V).
    4. After 3 seconds of IC protocol negotiation, ensure the voltage across R9 should be 10mV (right end is positive).
  6. When connected to a standard Type-C PD power supply, ensure the C23 voltage should be 20V and meet the above conditions.
  7. After unplugging the standard Type-C PD power supply, ensure the red light goes off in about 1 second.
  8. When the battery is fully charged, ensure the red light will be off and the blue light wull be on.

3D Printed Parts

Note

: The following parts are printed with a 0.4mm nozzle and 0.2mm layer height.

Note

: STLs not mentioned here can be printed using the auto-orientation directly

CylinderFan-Master-Body.stl - Position the fan upward and add support to the lower plane at the lanyard.

CylinderFan-Nozzle-*.stl - Add support to the outer circle below. Pause the print and add the magnet while the magnet hole closes the layer.

CylinderFan-Electronic-Body.stl - Print the LED translucent faces with a white filament.

CylinderFan-Battery-*.stl - If you select a finished battery, you only need to print the CylinderFan-Battery-Adapter*.stl part, otherwise print other STLs.

Assembly

Just assemble according to CAD drawings.

Be careful NOT to allow parts to run over, wrap around, or rub the wires.